Sulphur candle or fumigator



RA W. JQHNSON.. SULPHUR CANDLE 0R FUMIGATOR.

(No Model.)

No. 499,324. Patented June 1s, 189s.

y (Q5. Wien/wow UNITED STATESv ROBERT WV.

PATENT OFFICE.

JOHNSON, OF NEW BRUNSVICK, NEW JERSEY SPECIFICATION forming part of Letters Patent No. 499,324, dated June 13, 1893.

Application tiled October 15, 1892. Serial No. 448,972. (No model.)

To all whom it may concer-n.-

Beit known that I, ROBERT W. JOHNSON, a citizen of the United States, residing at New Brunswick, in the county of Middlesex, State of New Jersey, have invented certain new and,

- their storage and sale by druggists.

^ Another object is to produce a fumigator having incorporated in one of its faces a compound of sulphur and of a chemicalsalt more inflammable than sulphur and a wick of textile material, to easily light and vaporize said fumigator.

I attain these objects by the construction illustrated in the accompanying' drawings, in which- Figure 1 is a perspective view of a series of fumigators constructed in accordance with my invention. Fig. 2 is a vertical section of the same on line a: of Fig. 1. Fig. 3 is another series of fumigators constructed in accordance with my invention and placed in a closed bottom box. Fig. -l is a vertical section of the same on line y y of Fig. 3.

In said drawings A represents a rectangular box of non-inflammable material, preferably of cardboard impregnated or coated with alum or silicate of soda. Said box is provided with a bottom A2 of non-inflammable material. The top of said box is generally coverless. When the fumigators are packed in large boxes for shipment, the layers of boxes are separated by sheets of pasteboard.

Within the boxes A are placed the series of preferably four, small fumigators B, each weighing about a quarter of a pound. Said fumigators are preferably in the t'orrn of cubes, to permit a closer packing thereof although they may be cylindrical or of other form.

The fundamental principle of this invention consists in producing a sulphur fumigator of a molded block of sulphur having its sides inclosed in a box, and also having attached to or incorporated into, its upper face, a chemical compound more readily inainmable than sulphur, and a wick in said compound. Various forms may be given to the top of vthis compound as will be hereinafterdescribed.

In Fig. 1 the sulphur blocks B have incorporated in their upper face a chemical `con1 mable material as alum or silicate of soda or it may be asbestus board. The blocks are generally moldedy with their intended upper face down upon a suitably recessed surface and in the recess is placed the whales, or at least a portion of the upper end of the wick.

kSaid wick consists preferably of a narrow strip of cotton cloth as shown at bin the drawings. It is creased and partly folded lengthwise andplaced in that recess of the mold and the strip or box O placed around it. A small amount of the melted chemical igniting compound B2 is then poured upon and around the wick b in the bottom of the box C; and immediately after, the melted sulphur is poured therein within the box C until it is nearly, or entirely filled. When the sulphur has congealed the fumigator becomes completed. The wick maybe the form of a cross as shown at b2 by having strips of cloth crossing each other in the mold or may be in the form of a pyramid as shown at b3. The wick may alsobe of cotton wicking slightly impregnated with the igniting compound as shown at b4 and be made to extend through the sulphur block and the compound B2 adhering to said block. The igniting end of the wick projects slightly above the top surface of the fumigator, and said surface may be flat, or coucaved as shown at B3 in Fig. 3. Y

Although the fumigators are preferably molded upside down they can also be molded within a box provided with a bottom as shown ICO at C2 in Fig. 4 by pouring the plain melted sulphur, first. within said box until nearly full and on top thereof the igniting compound B2, and on top of said compound the Wick b, or any one of the Wicks above described. The surface of the block is then smoothed with a snitable tool and well compacted around the Wick.

To keep the burning sulphur from overflowing the box A the latter is made slightly larger than the volumes of the boxes C, but the latter are kept immovable within the box A, during transportation by a strip of pasteboard d inserted between the boxes C; but said strip can be easily removed before firing the fumigator.

Having now fully described my invention, I claim- 1. A sulphur fumigator consisting of a molded block of sulphur, inelosed in a'box of non flammable material and having incorporated in one ot its faces and in contact with said block a compound of sulphur and of a chemical salt more inflammable than sulphur and a wick of textile material.

2. A sulphur fumigator consisting of a molded block of sulphur inelosed in a box of non flammable material, and having incorporated in one of its faces, a compound of sulphur and of a chemical salt more infiammable than sulphur, and a wick of textile material coated with said compound ot' sulphur" rated in one of its faces a wick of textile material coated with a compound of sulphur and of a chemical salt more in flammable than sul phur, and a non flammable box of greater internal area than .the Volume of all the boxed blocks of sulphur placed therein, substantially as and for the purpose described.

In testimony whereof I atx my signatu re in presence of two Witnesses.

ROBERT W. JOHNSON.

Witnesses:

THos. G. PHINNY, J. W. JOHNSON. 

